(19)
(11) EP 4 674 461 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.01.2026 Bulletin 2026/04

(43) Date of publication A2:
07.01.2026 Bulletin 2026/02

(21) Application number: 25218022.9

(22) Date of filing: 07.05.2018
(51) International Patent Classification (IPC): 
A61M 39/08(2006.01)
A61M 25/00(2006.01)
A61M 39/02(2006.01)
 A61M 5/142(2006.01)
A61M 5/158(2006.01)
A61M 25/06(2006.01)
(52) Cooperative Patent Classification (CPC):
A61M 5/142; A61M 5/158; A61M 39/02; A61M 39/08; A61M 2005/1585; A61M 2005/1587; A61M 5/14248; A61M 25/0043; A61M 25/0009; A61M 25/065; A61M 2025/0059; A61M 2005/1586
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 08.05.2017 US 201762503274 P

(62) Application number of the earlier application in accordance with Art. 76 EPC:
18726688.7 / 3621685

(71) Applicant: Medtronic MiniMed, Inc.
Northridge, CA 91325-1219 (US)

(72) Inventors:
  • CHIU, Chia-Hung
    Pasadena, CA 91105 (US)
  • WANG, Hsifu
    Northridge, CA 91325 (US)
  • GOTTLIEB, Rebecca, K.
    Culver City, CA 90230 (US)

(74) Representative: Meissner Bolte Nürnberg 
Patentanwälte Rechtsanwälte Partnerschaft mbB Bankgasse 3
90402 Nürnberg
90402 Nürnberg (DE)

   


(54) FLEXIBLE TUBING, CANNULA AND INSERTION NEEDLE


(57) A flexible, fluid flow tubing is configured to be kink resistant, and a medical device is configured with such kink resistant tubing. The tubing has a length L, an inside radius r and an outside radius R, wherein L/R ≥ 34.8, and wherein R/r ≥ 1.5. A distal portion of the tubing is received in a channel of a hollow needle. The hollow needle is slideable axially relative to the tubing, to selectively slide off of the distal portion of the tubing. An insertion set system includes a base on which the tubing is secured, and an inserter having the needle and moveably received by the base. The base includes a fluid passage transverse to the axial dimension of the distal end portion of the tubing.







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Search report